PREFERRED NETWORKS INC
SC 13D, 1997-04-21
RADIOTELEPHONE COMMUNICATIONS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No.   )*



                            Preferred Networks, Inc. 
                                (Name of Issuer)

                    Common Stock, par value $.0001 per share 
                         (Title of Class of Securities)

                                    73990510 
                                 (CUSIP Number)

                            Thomas R. Stephens, Esq.
                      Bartlit Beck Herman Palenchar & Scott
                         511 Sixteenth Street Suite 700
                             Denver, Colorado  80202
                                  (303) 592-3100                           
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                  April 9, 1997 
             (Date of Event which Requires Filing of this Statement)


If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

Note:  Six copies of this statement, including all exhibits, should be filed
with the Commission.  See Rule 13d-1(a) for other parties to whom copies are to
be sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).

                        (Continued on following page(s))

                               Page 1 of 54 Pages


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Centennial Fund IV, L.P.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                  (a)  X
                                  (b)                                         


   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         WC


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
         ITEMS 2(D) OR 2(E)



   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Delaware


        NUMBER OF           7   SOLE VOTING POWER

       SHARES                   1,057,502    

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY                0

          EACH              9   SOLE DISPOSITIVE POWER
                                
       REPORTING                1,057,502
      
         PERSON            10   SHARED DISPOSITIVE POWER

          WITH                   0

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         1,057,502

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

                                       X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         6.5%

   14    TYPE OF REPORTING PERSON*
         PN


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Centennial Holdings IV, L.P.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                               (a) X
                                               (b)
                                                                              
  3     SEC USE ONLY
                                                                               
   4     SOURCE OF FUNDS*

         Not applicable 

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
        ITEMS 2(D) OR 2(E)




   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Delaware


        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 1,057,502 

      BENEFICIALLY          8   SHARED VOTING POWER
                                
        OWNED BY                0

          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING               1,057,502 

         PERSON            10   SHARED DISPOSITIVE POWER

         WITH                   0

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         1,057,502

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                                        
                                                        X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         6.5%

   14    TYPE OF REPORTING PERSON*
         PN


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!

   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Fleet Equity Partners VI, L.P.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                          (a)  X
                                          (b)                                 


   3     SEC USE ONLY


   4     SOURCE OF FUNDS*
            WC


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
         ITEMS 2(D) OR 2(E)



   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware


        NUMBER OF           7   SOLE VOTING POWER
                                
         SHARES                 0

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY                271,049 

          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING               0

         PERSON            10   SHARED DISPOSITIVE POWER
                                
         WITH                   271,049   
         
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         271,049

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                                                    X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         1.7%
   14    TYPE OF REPORTING PERSON*

         PN

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Fleet Growth Resources, II, Inc.
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

                                   (a)   X
                                   (b)                                         

   3     SEC USE ONLY



   4     SOURCE OF FUNDS*
         Not applicable


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
        ITEMS 2(D) OR 2(E)                   X

   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware

        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 0

      BENEFICIALLY          8   SHARED VOTING POWER

       OWNED BY                 271,049      

          EACH              9   SOLE DISPOSITIVE POWER
                                
        REPORTING               0

         PERSON            10   SHARED DISPOSITIVE POWER

         WITH                    271,049 

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         271,049
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                           X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         1.7%

   14    TYPE OF REPORTING PERSON*

         CO

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Fleet Growth Resources, Inc.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                            (a)  X
                                            (b)
                                                                                

   3     SEC USE ONLY



   4     SOURCE OF FUNDS*
         Not applicable


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
         ITEMS 2(D) OR 2(E)      

   6     CITIZENSHIP OR PLACE OF ORGANIZATION
            Rhode Island


        NUMBER OF           7   SOLE VOTING POWER

        SHARES                   0

      BENEFICIALLY          8   SHARED VOTING POWER
                                271,049
        OWNED BY

          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING                0

         PERSON            10   SHARED DISPOSITIVE POWER

          WITH                  271,049  

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         271,049

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                         X
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         1.7%

   14    TYPE OF REPORTING PERSON*
         CO


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!

   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Fleet Venture Resources, Inc.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                         (a)   X
                                         (b)                                  

   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         WC

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
         ITEMS 2(D) OR 2(E) 
   
   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Rhode Island


        NUMBER OF           7   SOLE VOTING POWER

        SHARES                  0

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY                632,450  

          EACH              9   SOLE DISPOSITIVE POWER

       REPORTING                 0

         PERSON            10   SHARED DISPOSITIVE POWER

         WITH                   632,450
         
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         632,450

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                                       X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.9%
   14    TYPE OF REPORTING PERSON*

         CO

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Fleet Private Equity Co, Inc.
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

                     (a)    X
                     (b)                                                     

   3     SEC USE ONLY



   4     SOURCE OF FUNDS*

         Not applicable

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
       ITEMS 2(D) OR 2(E)

       
   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Rhode Island


        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 0

      BENEFICIALLY          8   SHARED VOTING POWER

      OWNED BY                  903,499

        EACH              9   SOLE DISPOSITIVE POWER

        REPORTING                0

         PERSON            10   SHARED DISPOSITIVE POWER

         WITH                   903,499    

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         903,499

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                           X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         5.6%

   14    TYPE OF REPORTING PERSON*
         CO


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!

   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Fleet Financial Group, Inc.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                           (a)   X
                                           (b)                                


   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         Not applicable


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
   ITEMS 2(D) OR 2(E)



   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Rhode Island


        NUMBER OF           7   SOLE VOTING POWER

          SHARES                903,499  

      BENEFICIALLY          8   SHARED VOTING POWER

         OWNED BY                0

          EACH              9   SOLE DISPOSITIVE POWER
                                
      REPORTING                 903,499
        
                 
        PERSON            10   SHARED DISPOSITIVE POWER

         WITH                   0

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         903,499
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                   X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         5.6%

   14    TYPE OF REPORTING PERSON*

         CO

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Silverado IV Corp.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                     (a) X
                                     (b)
                                          
                                       
   3     SEC USE ONLY



   4     SOURCE OF FUNDS*
         Not applicable


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
         ITEMS 2(D) OR 2(E)



   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware

        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 0   

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY              271,049     

          EACH              9   SOLE DISPOSITIVE POWER

       REPORTING                 0

         PERSON            10   SHARED DISPOSITIVE POWER

         WITH                   271,049
          
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          271,049

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
   
                                                                   
                                                                   X
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         1.7%

   14    TYPE OF REPORTING PERSON*
         CO


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!

   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Chisholm Partners II, L.P.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                  (a) X
                                                  (b)                        



   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         WC

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
        ITEMS 2(D) OR 2(E)

        
   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Delaware


        NUMBER OF           7   SOLE VOTING POWER
          
          SHARES                 0  

      BENEFICIALLY          8   SHARED VOTING POWER

       OWNED BY                 139,001        
                                
          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING               0

         PERSON            10   SHARED DISPOSITIVE POWER

          WITH                  139,001 

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         139,001

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                       X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
          0.9%

   14    TYPE OF REPORTING PERSON*

         PN

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Silverado II, L.P.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                           (a)  X
                                           (b)
                                                                                

   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         Not applicable


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
        ITEMS 2(D) OR 2(E)

        
   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware

        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 0

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY               139,001  

          EACH              9   SOLE DISPOSITIVE POWER

       REPORTING                0

         PERSON            10   SHARED DISPOSITIVE POWER

          WITH                  139,001   

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         139,001
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                          X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         0.9%

   14    TYPE OF REPORTING PERSON*

         PN
                             * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Silverado II Corp.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                             (a)   X
                                             (b)
                                                                                
   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         Not applicable


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
       ITEMS 2(D) OR 2(E)



   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware

        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 0

      BENEFICIALLY          8   SHARED VOTING POWER

       OWNED BY                 139,001  

          EACH              9   SOLE DISPOSITIVE POWER
                                
        REPORTING               0

         PERSON            10   SHARED DISPOSITIVE POWER

        WITH                    139,001  

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         139,001
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                         X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         0.9%

   14    TYPE OF REPORTING PERSON*

         CO

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Robert M. Van Degna
         
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                       (a)  X
                                       (b)                                      
   3     SEC USE ONLY



   4     SOURCE OF FUNDS*

         Not applicable

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
          ITEMS 2(D) OR 2(E)
         

   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         United States


        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 6,000 

      BENEFICIALLY          8   SHARED VOTING POWER

       SHARES                   1,042,500
    
        OWNED BY

          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING               6,000   

         PERSON            10   SHARED DISPOSITIVE POWER

          WITH                 1,042,500 

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         1,048,500

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                         X
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         6.5%

   14    TYPE OF REPORTING PERSON*
         IN

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Habib Y. Gorgi

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                         (a)  X
                                         (b) 
  3     SEC USE ONLY

   4     SOURCE OF FUNDS*

         Not applicable

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
        ITEMS 2(D) OR 2(E)




   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         United States


        NUMBER OF           7   SOLE VOTING POWER

          SHARES                 0   

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY                1,042,500
       
          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING               0

         PERSON            10   SHARED DISPOSITIVE POWER

          WITH                  1,042,500   

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         1,042,500

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                                    
                                                    X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         6.5%

   14    TYPE OF REPORTING PERSON*
         IN


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!

   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Saugatuck Capital Company Limited Partnership III

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                    (a) X
                                                    (b) 
                                                                                

   3     SEC USE ONLY


   4     SOURCE OF FUNDS*
   
          WC


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
      ITEMS 2(D) OR 2(E)



   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware


        NUMBER OF           7   SOLE VOTING POWER
                                
         SHARES                 0

      BENEFICIALLY          8   SHARED VOTING POWER

         OWNED BY               1,042,502 

          EACH              9   SOLE DISPOSITIVE POWER

       REPORTING                0

         PERSON            10   SHARED DISPOSITIVE POWER

          WITH                  1,042,502
          
   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,042,502

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                                             X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         6.5%
   14    TYPE OF REPORTING PERSON*

         PN

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Greyrock Partners Limited Partnership
   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

                                           (a)   X
                                           (b)                               


   3     SEC USE ONLY



   4     SOURCE OF FUNDS*
         Not applicable


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
         ITEMS 2(D) OR 2(E)
         

   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Delaware

        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 0

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY                1,042,502    

          EACH              9   SOLE DISPOSITIVE POWER
                                
        REPORTING               0

         PERSON            10   SHARED DISPOSITIVE POWER

         WITH                   1,042,502 

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         1,042,502
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                          X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         6.5%

   14    TYPE OF REPORTING PERSON*

         PN

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         PNC Capital Corp.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                           (a)  X
                                           (b)
                                                                                

   3     SEC USE ONLY



   4     SOURCE OF FUNDS*
         WC


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
        ITEMS 2(D) OR 2(E)
        

   6     CITIZENSHIP OR PLACE OF ORGANIZATION
            Delaware


        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 416,997 

      BENEFICIALLY          8   SHARED VOTING POWER
                                
        OWNED BY                0

          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING               416,997 

         PERSON            10   SHARED DISPOSITIVE POWER

          WITH                   0   

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         416,997

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                     X
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         2.6

   14    TYPE OF REPORTING PERSON*
         CO


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!

   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         PNC Holding Corp.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                     (a)  X
                                     (b)                                      

   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         Not applicable

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
        ITEMS 2(D) OR 2(E)




   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Delaware


        NUMBER OF           7   SOLE VOTING POWER

        SHARES                  416,997         SHARES
        
        BENEFICIALLY          8   SHARED VOTING POWER

         OWNED BY                  0   

          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING                416,997  

         PERSON            10   SHARED DISPOSITIVE POWER
                                
          WITH                  0

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         416,997

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                                            X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         2.6%
   14    TYPE OF REPORTING PERSON*

         CO

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         PNC Bank Corp.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

                                       (a)   X
                                       (b)                                    

   3     SEC USE ONLY



   4     SOURCE OF FUNDS*

         Not applicable

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
        ITEMS 2(D) OR 2(E)

        
   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Pennsylvania


        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 416,997 

      BENEFICIALLY          8   SHARED VOTING POWER
                                
        OWNED BY                0
        
         EACH              9   SOLE DISPOSITIVE POWER

       REPORTING               416,997 

         PERSON            10   SHARED DISPOSITIVE POWER

         WITH                   0

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         416,997

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                 X
   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         2.6%

   14    TYPE OF REPORTING PERSON*
         CO


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!

   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Primus Capital Fund III Limited Partnership

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                 (a) X
                                 (b)                                        

   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         WC


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
        ITEMS 2(D) OR 2(E)



   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Ohio


        NUMBER OF           7   SOLE VOTING POWER

        SHARES                   521,250 

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY                 0

        EACH              9   SOLE DISPOSITIVE POWER

       REPORTING                521,250
        
       PERSON            10   SHARED DISPOSITIVE POWER

        WITH                    0

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         521,250
   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                 X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         3.2%

   14    TYPE OF REPORTING PERSON*

         PN

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
         Primus Venture Partners III Limited Partnership

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                     (a) X
                                     (b)
                                                                                
   3     SEC USE ONLY



   4     SOURCE OF FUNDS*
         Not applicable


   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
      ITEMS 2(D) OR 2(E)



   6     CITIZENSHIP OR PLACE OF ORGANIZATION

         Ohio

        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 521,250 

      BENEFICIALLY          8   SHARED VOTING POWER

         OWNED BY               0

          EACH              9   SOLE DISPOSITIVE POWER

      REPORTING                 521,250 

         PERSON            10   SHARED DISPOSITIVE POWER
                                
          WITH                  0

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         521,250

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                                X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         3.2%

   14    TYPE OF REPORTING PERSON*
         PN


                     * SEE INSTRUCTIONS BEFORE FILLING OUT!

   1     NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

         Primus Venture Partners, Inc.

   2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                   (a)  X
                                                   (b)                       

   3     SEC USE ONLY


   4     SOURCE OF FUNDS*

         Not applicable

   5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
      ITEMS 2(D) OR 2(E)

      
   6     CITIZENSHIP OR PLACE OF ORGANIZATION
         Ohio


        NUMBER OF           7   SOLE VOTING POWER

         SHARES                 521,250   

      BENEFICIALLY          8   SHARED VOTING POWER

        OWNED BY                0

          EACH              9   SOLE DISPOSITIVE POWER

        REPORTING               521,250 

         PERSON            10   SHARED DISPOSITIVE POWER

         WITH                   0

   11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         521,250

   12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                 X

   13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         3.2%

   14    TYPE OF REPORTING PERSON*

         CO

                     * SEE INSTRUCTIONS BEFORE FILLING OUT!


                                  STATEMENT ON SCHEDULE 13D

                  Saugatuck Capital Company Limited Partnership III and Greyrock
Partners Limited Partnership previously filed a Statement on Schedule 13D in
connection with the securities of the Issuer.  This Statement on Schedule 13D
shall constitute an amendment of such Statement.

Item 1.     Security and Issuer.

            This Statement relates to the Common Stock, par value $.0001 per
share (the "Shares") of Preferred Networks, Inc., a Delaware corporation (the
"Company").  The principal executive offices of the Company are located at 850
Center Way, Norcross, Georgia 30071.

Item 2.     Identity and Background

            (a)   This Statement is filed by the following (collectively, the
"Reporting Persons"):

            (i) by virtue of their direct beneficial ownership of Shares, by
      each of Centennial Fund IV, L.P., a Delaware limited partnership
      ( Centennial IV ), Fleet Equity Partners VI, L.P., a Delaware limited
      partnership ( FEP VI ), Fleet Venture Resources, Inc., a Rhode Island
      Corporation ( FVR ), Chisholm Partners II, L.P., a Delaware  limited
      partnership ( CP ), Saugatuck Capital Company Limited Partnership III, a
      Delaware limited partnership ( Saugatuck III ), PNC Capital Corp., a
      Delaware corporation ( PNCCC ), and Primus Capital Fund III Limited
      Partnership, an Ohio limited partnership ( Primus III ) (collectively, the
       Stockholders ),

            (ii) by virtue of being the sole general partner of Centennial IV,
      by Centennial Holdings IV, L.P., a Delaware limited partnership ( Holdings
      IV ),

            (iii) by virtue of being the sole general partners of FEP VI, by
      Fleet Growth Resources II, Inc., a Delaware corporation ( FGRII ) and
      Silverado IV Corp., a Delaware corporation ( SCIV ),

            (iv) by virtue of the ownership of all of the outstanding common
      stock of FGRII, by Fleet Growth Resources, Inc., a Rhode Island
      corporation ( FGR ),

            (v) by virtue of the ownership of all of the outstanding common
      stock of  FGR and all of the outstanding common stock of FVR, by Fleet
      Private Equity Co., a Rhode Island corporation ( FPEC )

            (vi) by virtue of the ownership of all of the outstanding common
      stock of FPEC, by Fleet Financial Group, Inc., a Rhode Island corporation
      ( FFGI ),

            (vii) by virtue of being the sole general partner of CP, by
      Silverado II, L.P., a Delaware limited partnership ( SLP ),

            (viii) by virtue of being the sole general partner of SLP, by
      Silverado II Corp., a Delaware corporation ( SCII ),
                
          (ix) by virtue of their ownership of a majority of the outstanding
      common stock of SCII and SCIV, and by virtue of their officer and director
      positions and roles with FVR, FGR, FGRII, FPEC, SCII and SCIV, by Robert
      M. Van Degna and Habib Y. Gorgi (Mr. Van Degna is also the direct
      beneficial owner of Shares),

            (x) by virtue of being the sole general partner of Saugatuck III, by
      Greyrock Partners Limited Partnership, a Delaware limited partnership
      ( Greyrock ),

            (xi) by virtue of being the sole general partner of Primus III, by
      Primus Venture Partners III Limited Partnership ( Primus Venture III ), an
      Ohio limited partnership, 

            (xii) by virtue of being the sole general partner of Primus Venture
      III, by Primus Venture Partners, Inc. ( Primus ), an Ohio corporation, 

            (xiii) by virtue of the ownership of all of the outstanding common
      stock of PNCCC, by PNC Holding Corp., a Delaware corporation ( PNCHC ) and

            (xiv) by virtue of the ownership of all of the outstanding common
      stock of PNCHC, by PNC Bank Corp., a Pennsylvania corporation ( PNCBC ).

            By signing this Statement, each Reporting Person agrees that this
Statement is filed on its behalf.  No Reporting Person assumes responsibility
for the completeness or accuracy of the information concerning any other
Reporting Person.

            Steven C. Halstedt, G. Jackson Tankersley, Jr., Jeffrey H. Schutz,
Adam Goldman, Donald H. Parsons, Jr., and David C. Hull, Jr. are the sole
general partners of Holdings IV (the  Centennial Partners ).  By virtue of the
relationships described above and their roles with Centennial IV and Holdings
IV, each of the Centennial Partners may be deemed to control Holdings IV and
Centennial IV and may be deemed to possess indirect beneficial ownership of the
Shares held by Centennial IV.  However, none of the Centennial Partners, acting
alone, has voting or investment power with respect to the Shares directly
beneficially held by Centennial IV, and, as a result, each Centennial  Partner
disclaims beneficial ownership of the Shares directly beneficially owned by
Centennial IV.

            Certain information concerning the executive officers and directors
of FGRII, FGR, FVR, FPEC, FFGI, SCII and SCIV (collectively, the  Fleet
Directors and Officers ) is set forth on Schedule A attached hereto, which is
incorporated herein by this reference.

            Frank J. Hawley, Jr., Christy S. Sadler, Owen S. Crihfield, Richard
P. Campbell, Jr., and Barbara E. Parker (collectively, the  Saugatuck Partners )
are each general partners of Greyrock.  However, none of the Saugatuck Partners,
acting alone, has voting or investment power with respect to the Shares directly
beneficially held by Saugatuck III, and, as a result, each Saugatuck Partner
disclaims beneficial ownership of the Shares directly beneficially owned by
Saugatuck III.

            James T. Bartlett, Jonathan E. Dick, Kevin J. McGinty, William C.
Mulligan, Steven Rothman and Loyal Wilson (collectively, the  Primus Officers )
are each Managing Directors of Primus and limited partners of Primus Venture
III.  The Primus Officers other than Mr. Rothman are also shareholders of
Primus.

            Certain information concerning the executive officers and directors
of PNCCC, PNCHC and PNCBC (collectively, the  PNC Directors and Officers ) is
set forth on Schedule B attached hereto, which is incorporated herein by this
reference.

            For purposes of this Statement, the Centennial Partners, the Fleet
Directors and Officers, the Saugatuck Partners, the Primus Officers, and the PNC
Officers and Directors are collectively referred to as the  Officers and
Partners. 

            (b)   The principal executive offices of Centennial IV and Holdings
IV, and the business address of each Centennial Partner, are located at 1428
Fifteenth Street, Denver, Colorado 80202-1318.

            The principal business address of each of FEP VI, FGRII, FGR, FVR,
FPEC, CP, SLP, SCII, SCIV and Messrs. Van Degna and Gorgi is 50 Kennedy Plaza,
Providence, Rhode Island 02903.  The principal business address of FFGI is 1
Federal Street, Boston, Massachusetts 02110.

            The principal executive offices of Saugatuck III and Greyrock, and
the business address of each Saugatuck Officer, are One Canterbury Green,
Stamford, Connecticut  06901.

            The principal executive offices of Primus III, Primus Venture III
and Primus, and the business address of each Primus Officer, are located at 1375
E. Ninth Street, Suite 2700, Cleveland, Ohio 44114.

            The principal executive offices of PNCCC and PNCHC and the business
address of each PNCCC and PNCHC officer are c/o PNC Bank, Delaware, 222 Delaware
Avenue, Wilmington, Delaware  19801.  The principal executive offices of PNCBC
and the business address of each PNCBC officer are One PNC Plaza, 249 Fifth
Avenue, Pittsburgh, Pennsylvania 15222-2707.

            (c)   Centennial IV is a venture capital investment partnership. 
Holdings IV s principal business is acting as the general partner of Centennial
IV.  Each of the Centennial Partners is a general partner of each of Holdings IV
and Centennial Holdings V, L.P., which is engaged in the business of acting as a
general partner to a venture capital investment partnership.

            The principal business of each of FEP VI, FGRII, FGR, FVR, FPEC, CP,
SLP, SCII and SCIV is making and managing private equity investments, and, in
the case of FGRII and SCIV, acting as the general partners of FEP VI, in the
case of SLP, acting as the general partner of CP, in the case of SCII, acting as
the general partner of SLP.  FFGI is principally engaged in the business of
providing diversified financial services, including services relating to
commercial banking, consumer banking, investment services, asset collection and
management services to its subsidiaries, financial institutions and
individuals. 
Mr. Van Degna is Chairman and CEO of each of FPEC, FVR, FGR and FGRII, and
Chairman, CEO and Treasurer of SCII and SCIV.  Mr. Gorgi is President o FPEC,
FVR, FGR and FGRII, and President and Secretary of SCII and SCIV.

            Saugatuck III and Greyrock are engaged in the venture capital
business.  Each of the Saugatuck Partners is an executive officer of Saugatuck
Associates, Inc. ( SA ), which is engaged in venture capital financing, and
holds various other positions with companies affiliated with SA.

            Primus III is a venture capital investment partnership.  Primus
Venture III s principal business is acting as the general partner of Primus
III. 
Primus  principal business is acting as the general partner of Primus Venture
III.  Each of the Primus Officers is a Managing Director of Primus.

            PNCCC is a venture capital investment corporation.  PNCHC acts as a
holding company for certain non-bank indirect subsidiaries of PNCBC.  PNCBC is
principally engaged in the business of providing diversified financial services,
including services relating to commercial banking, consumer banking, investment
services, asset collection and management services to its subsidiaries,
financial institutions and individuals.

            (d)   None of the Reporting Persons or, to the knowledge of the
Reporting Persons, any of the Officers and Partners, has been convicted in a
criminal proceeding in the past five years (excluding traffic violations or
similar misdemeanors).

           (e)   During the past five years, none of the Reporting Persons or,
to the knowledge of the Reporting Persons, any of the Officers and Partners, was
a party to a civil proceeding of a judicial or administrative body of competent
jurisdiction as a result of which such person was or is subject to a judgment,
decree or final order enjoining future violations of, or prohibiting or
mandating activities subject to, federal or state securities laws of finding any
violation with respect to such laws.

            (f)   Centennial IV, Holdings IV, FEP VI, CP, SLP, Saugatuck III and
Greyrock are Delaware limited partnerships.   FGRII, SCII, SCIV,  PNCCC and
PNCHC are Delaware corporations.  FGR, FVR, FPEC and FFGI are Rhode Island
corporations.  PNCBC is a Pennsylvania corporation.  Primus III and Primus
Venture III are Ohio limited partnerships.  Primus is an Ohio corporation.  Each
of Messrs. Van Degna and Gorgi and the Officers and Partners is a citizen of the
United States. 


Item 3.     Source and Amount of Funds or Other Consideration

            The total amount of funds required by Centennial IV to acquire the
Shares reported in Item 5(a) was $3,332,399, and the total amount of funds
required by Centennial IV to make the Investment described in Item 4 will be
$4,700,000.  Such funds were or will be provided by Centennial IV s capital
available for investment.

            The total amount of funds required by FEP VI to acquire the Shares
reported in Item 5(a) was $849,070, and the total amount of funds required by
FEP VI to make the Investment described in Item 4 will be $1,503,000.  Such
funds were or will be provided by FEP VI s capital available for investment.

            The total amount of funds required by FVR to acquire the Shares
reported in Item 5(a) was $1,981,174, and the total amount of funds required by
FVR to make the Investment described in Item 4 will be $3,507,000.  Such funds
were or will be provided by FVR s capital available for investment.

            The total amount of funds required by CP to acquire the Shares
reported in Item 5(a) was $435,423, and the total amount of funds required by CP
to make the Investment described in Item 4 will be $90,000.  Such funds were or
will be provided by CP s capital available for investment.

            The total amount of funds required by Saugatuck III to acquire the
Shares reported in Item 5(a) was $3,331,345, and the total amount of funds
required by Saugatuck III to make the Investment described in Item 4 will be
$1,800,000.  The source of such funds was or will be capital obtained from
private investors. 

            The total amount of funds required by Primus III to acquire the
Shares reported in Item 5(a) was $1,657,905, and the total amount of funds
required by Primus III to make the Investment described in Item 4 will be
$1,700,000.  Such funds were or will be provided by Primus III s capital
available for investment.

            The total amount of funds required by PNCCC to acquire the Shares
reported in Item 5(a) was $1,212,113, and the total amount of funds required by
PNCCC to make the Investment described in Item 4 will be $1,700,000.  Such funds
were or will be provided by PNCCC s capital available for investment.

            The Reporting Persons understand that the restricted Shares held by
Jeffrey Schutz and Robert Van Degna, as reported in Item 5(a), were acquired by
such persons in consideration of their service as directors of the Company.  The
Reporting Persons understand that the total amount of funds required by Kevin
McGinty and James T. Bartlett to acquire the Shares reported in Item 5(a) was
$30,000 and $20,000, respectively.  The source of such funds was such person s
personal investment funds.  <PAGE>
Item 4.     Purpose of Transaction

            Each of the Stockholders holds the Shares described in Item 5 of
this Statement for investment only.  Depending upon their evaluation of the
Company's investments and prospects, and upon future developments (including,
but not limited to, performance of the Shares in the market, the effective yield
on the Shares, availability of funds, alternative uses of funds, and money,
stock market and general economic conditions), each of the Stockholders may from
time to time purchase Shares, dispose of all or a portion of the Shares it
holds, or cease buying or selling Shares.  Any such additional purchases or
sales of the Shares may be in open market or privately-negotiated transactions
or otherwise.

            Jeffrey Schutz and Robert Van Degna are directors of the Company. 
The Reporting Persons understand they acquired the Shares reported in Item 5(a)
as held by each or Messrs. Schutz, Van Degna, McGinty and Bartlett are held for
investment purposes only.

            On April 9, 1997, the Stockholders committed, pursuant to the term
sheet attached as Exhibit 1 (the  Term Sheet ), to invest an aggregate of $15
million in newly issued Class A Preferred Stock and warrants of the Company (the
 Investment ).  On April 9, 1997, the Company accepted such commitment.  The
funds from the Investment are to be used by the Company for capital expenditures
related to the Company s network buildout and for general corporate purposes. 
The Term Sheet provides that the holders of the Class A Preferred Stock will be
entitled to elect one director other than Messrs. Schutz and Van Degna.  In
connection with the Investment, the Stockholders agreed to make a bridge loan to
the Company of up to $10,000,000 on or before April 25, 1997, which loan will
bear interest at an annual rate of 10% and will be due June 30, 1997 or upon the
closing of the Investment.  The Investment is subject to a number of conditions,
including without limitation the negotiation of definitive documents to evidence
the Investment and approval by the Company s shareholders of certain
transactions contemplated by the Investment, and no assurances can be given that
the Investment will be closed or that the terms and conditions of the Investment
will not change.  The foregoing summary of the Term Sheet is qualified in its
entirety by reference to the text of the Term Sheet attached as Exhibit 1 to
this Statement.

            Except as described in this Item 4, none of the Reporting Persons
nor any of the Officers and Partners has formulated any plans or proposals which
relate to or would result in any matter required to be disclosed in response to
paragraphs (a) through (j) of Item 4 of Schedule 13D.


Item 5.     Interest in Securities of the Issuer.

            (a)   Centennial IV is the direct beneficial owner of 1,042,502
Shares, or approximately 6.5% of the 16,080,559 Shares deemed outstanding as of
April 7, 1997 according to information contained in the Company s Annual Report
on Form 10-K for the year ended December 31, 1996 (the  Form 10-K )).  By virtue
of the relationships reported under Item 2 of this Statement, Holdings IV may be
deemed to have indirect beneficial ownership of the Shares directly beneficially
owned by Centennial IV.

            In addition to the Shares directly held by Centennial IV as
identified above, Jeffrey Schutz holds 15,000 restricted Shares, or less than 1%
of the Outstanding Shares. Such Shares are held on behalf of Centennial IV. 
Such Shares are subject to certain vesting restrictions and were issued to Mr.
Schutz in connection with his services to the Company as a director.  Mr. Schutz
disclaims beneficial ownership of such Shares, and Centennial IV and Holdings IV
may be deemed to have indirect beneficial ownership of such Shares.

            FEP VI is the direct beneficial owner of 271,049 Shares, or
approximately 1.7% of the Outstanding Shares.  By virtue of the relationships
reported under Item 2 of this Statement, FGRII, FGR, FPEC, FFGI, SCIV and
Messrs. Van Degna and Gorgi may be deemed to share indirect beneficial ownership
of the Shares directly beneficially owned by FEP VI.  Messrs. Van Degna and
Gorgi disclaim beneficial ownership of the shares not held directly by them.
 
            FVR is the direct beneficial owner of 632,450 Shares, or
approximately 3.9% of the Outstanding Shares.  By virtue of the relationship
reported under Item 2 of this Statement, FPEC, FFGI and Messrs. Van Degna and
Gorgi may be deemed to share indirect beneficial ownership of the Shares
directly beneficially owned by FVR.  Messrs. Van Degna and Gorgi disclaim
beneficial ownership of the shares not held directly by them.

            CP is the direct beneficial owner of 139,001 Shares, or
approximately 0.9% of the Outstanding Shares.  By virtue of the relationship
reported under Item 2 of this Statement, SLP, SCII and Messrs. Van Degna and
Gorgi may be deemed to share indirect beneficial ownership of the Shares
directly beneficially owned by CP.  Messrs. Van Degna and Gorgi disclaim
beneficial ownership of the shares not held directly by them.

            Robert Van Degna is the direct beneficial owner of 6,000 restricted
Shares, or less than 1% of the Outstanding Shares.  Mr. Van Degna has been
granted other Shares which are subject to certain vesting restrictions and were
issued to him in connection with his services as a director of the Company.

            Saugatuck III is the direct beneficial owner of 1,042,502 Shares, or
approximately 6.5% of the Outstanding Shares.  By virtue of the relationships
reported under Item 2 of this Statement, Greyrock may be deemed to have indirect
beneficial ownership of the Shares directly beneficially owned by Saugatuck III.

            Primus III is the direct beneficial owner of 521,250 Shares, or
approximately 3.2% of the Outstanding Shares.  By virtue of the relationships
reported under Item 2 of this Statement, Primus Venture III and Primus may be
deemed to have indirect beneficial ownership of the Shares directly beneficially
owned by Primus III. 

            PNCCC is the direct beneficial owner of 416,997 Shares, or
approximately 2.6% of the Outstanding Shares.  By virtue of the relationships
reported under Item 2 of this Statement, PNCHC and PNCBC may be deemed to have
indirect beneficial ownership of the Shares directly beneficially owned by
PNCCC. 

            The information included in the third paragraph under Item 4 of this
Statement is hereby incorporated in its entirety by this reference.  By virtue
of the arrangements described in Item 4, the Stockholders may be deemed to
constitute a group formed for the purpose of making the Investment.  Except as
specifically set forth in this Item 5(a), each of the Reporting Persons
disclaims beneficial ownership of Shares held by the other Reporting Persons.

            The Reporting Persons understand Kevin McGinty is the direct
beneficial owner of 3,000 Shares, or less than 1% of the Outstanding Shares, and
that James T. Bartlett is the direct beneficial owner of 2,000 Shares, or less
than 1% of the Outstanding Shares.

            (b)   Centennial IV has the direct power to direct the disposition
of and vote the Shares held by it.  By virtue of the relationships described in
Item 2, Holdings IV may be deemed to have the indirect power to vote and direct
the disposition of the Shares held by Centennial IV.

            FEP VI has the direct power to direct the disposition of and vote
the Shares held by it.  By virtue of the relationships described in Item 2, each
of FGRII, FGR, FPEC, FFGI, SCIV and Messrs. Van Degna and Gorgi may be deemed to
have the indirect power to vote and direct the disposition of the Shares held by
FEP VI.

            FVR has the direct power to direct the disposition of and vote the
Shares held by it.  By virtue of the relationships described in Item 2, each of
FPEC, FFGI and Messrs. Van Degna and Gorgi may be deemed to have the indirect
power to vote and direct the disposition of the Shares held by FVR.

           CP has the direct power to direct the disposition of and vote the
Shares held by it.  By virtue of the relationships described in Item 2, each of
SLP, SCII and Messrs. Van Degna and Gorgi may be deemed to have the indirect
power to vote and direct the disposition of the Shares held by CP.

            Saugatuck III has the direct power to direct the disposition of and
vote the Shares held by it.  By virtue of the relationships described in Item 2,
Greyrock may be deemed to have the indirect power to vote and direct the
disposition of the Shares held by Saugatuck III.

            PNCCC has the direct power to direct the disposition of and vote the
Shares held by it.  By virtue of the relationships described in Item 2, PNCHC
and PNCBC may be deemed to have the indirect power to vote and direct the
disposition of the Shares held by PNCCC.

            Primus III has the direct power to direct the disposition of and
vote the Shares held by it.  By virtue of the relationships described in Item 2,
Primus Venture III and Primus may be deemed to have the indirect power to vote
and direct the disposition of the Shares held by Primus III.

            The Reporting Persons understand that Messrs. Schutz and Van Degna
each has the power to vote the Shares held by him, and the power to direct the
disposition of vested the Shares held by him.  Under the restrictions applicable
to such Shares, unvested Shares are not transferable.  The Reporting Persons
understand that Messrs. McGinty and Bartlett each has the power to vote and
direct the disposition of the Shares that he holds. 

            (c)   None of the Reporting Persons or any of the Officers and
Partners have effected any transaction in the Shares during the past 60 days.

            (d)   Each of the Stockholders has the right to receive and the
power to direct the receipt of dividends from, and proceeds from the sale of,
the Shares held by it.

            The Reporting Persons understand that Messrs. Schutz, Van Degna,
McGinty and Bartlett each has the right to receive and the power to direct to
receipt of, dividends from, and the proceeds from the sale of, the Shares held
by him.  In Mr. Schutz s case, such power is subject to his agreements with
Centennial IV.

            (e)   Not applicable.


Item 6.     Contracts, Arrangements, Understandings or Relationships With
Respect to Securities of the Issuer.

            The information included under the third paragraph of Item 4 of this
Statement is hereby incorporated in its entirety by this reference.

            Pursuant to a Purchase Agreement dated as of June 21, 1995, among
each of the Stockholders and the Company, as amended December 12, 1995 (the
 Purchase Agreement ), the Stockholders acquired certain securities of the
Company and the Company agreed, among other things, (i) to provide the
Stockholders with certain inspection and information rights, (ii) comply with
certain covenants, and (iii) reimburse the Stockholders for certain expenses. 
The foregoing summary of the Purchase Agreement is qualified in its entirety by
reference to the Purchase Agreement attached as Exhibits 3 and 4 to this
Statement.

            Pursuant to a Registration Rights Agreement dated as of June 21,
1995, among each of the Stockholders, the Company and certain other persons, as
amended (the  Registration Rights Agreement ), the Stockholders have the right
to exercise certain demand and piggyback registration rights with respect to,
and, subject to certain restrictions, the Company is required to register, the
Shares owned by the Stockholders.  The foregoing summary of the Registration
Rights Agreement is qualified in its entirety by reference to the Registration
Rights Agreement attached as Exhibit 5 to this Statement.

            Pursuant to a Stockholders Agreement dated as of June 21, 1995 among
each of the Stockholders, the Company and certain other persons (the
 Stockholders Agreement ), the Stockholders agreed to certain holdback
restrictions in connection with their sale of Shares.  The foregoing summary of
the Stockholders Agreement is qualified in its entirety by reference to the
Stockholders Agreement attached as Exhibit 6 to this Statement.

            Other than set forth above, neither any of the Reporting Persons nor
any of the Officers and Partners has any contract, arrangement, understanding or
relationship (legal or otherwise) with any person with respect to securities of
the Company, including, but not limited to, transfer or voting of any such
securities, finder's fees, joint ventures, loans or option arrangements, puts or
calls, guarantees of profits, division of profits or losses, or the giving or
withholding of proxies.

Item 7.     Material to be Filed as Exhibits.

            Exhibit 1.  Term Sheet dated April 9, 1997 among Centennial Fund IV,
            L.P., Fleet Equity Partners VI, L.P., Saugatuck Capital Company
            Limited Partnership III, PNC Capital Corp., Primus Capital Fund III
            limited partnership, and Preferred Networks, Inc., incorporated by
            reference to Exhibit 10.31 to Preferred Networks, Inc. s Annual
            Report on Form 10-K for the year ended December 31, 1996.

            Exhibit 2.  Form of Director s Restricted Stock Award Agreement
            between Preferred Networks, Inc. and each of Jeffrey Schutz and
            Robert Van Degna.

            Exhibit 3.  Purchase Agreement dated June 21, 1995 among Centennial
            Fund IV, L.P., Fleet Equity Partners VI, L.P., Fleet Venture
            Resources, Inc., Chisholm Partners II, L.P., Saugatuck Capital
            Company Limited Partnership III, PNC Capital Corp., Primus Capital
            Fund III Limited Partnership and Preferred Networks, Inc.,
            incorporated by reference to Exhibit 10.6 to Preferred Networks,
            Inc. s Registration Statement on Form S-1 (No. 33-80507).

            Exhibit 4.  Amendment dated December 12, 1995 to Purchase Agreement
            dated June 21, 1995 among Centennial Fund IV, L.P., Fleet Equity
            Partners VI, L.P., Fleet Venture Resources, Inc., Chisholm Partners
            II, L.P., Saugatuck Capital Company Limited Partnership III, PNC
            Capital Corp., Primus Capital Fund III Limited Partnership and
            Preferred Networks, Inc.

            Exhibit 5.  Stockholders Agreement dated June 21, 1995 among
            Centennial Fund IV, L.P., Fleet Equity Partners VI, L.P., Fleet
            Venture Resources, Inc., Chisholm Partners II, L.P., Saugatuck
            Capital Company Limited Partnership III, PNC Capital Corp., Primus
            Capital Fund III limited partnership, Preferred Networks, Inc., and
            certain other persons, incorporated by reference to Exhibit 10.7 to
            Preferred Networks, Inc. s Registration Statement on Form S-1 (No.
            33-80507).

            Exhibit 6.  Registration Rights Agreement dated June 21, 1995 among
            Centennial Fund IV, L.P., Fleet Equity Partners VI, L.P., Fleet
            Venture Resources, Inc., Chisholm Partners II, L.P., Saugatuck
            Capital Company Limited Partnership III, PNC Capital Corp., Primus
            Capital Fund III limited partnership, Preferred Networks, Inc., and
            certain other persons, incorporated by reference to Exhibit 10.8 to
            Preferred Networks, Inc. s Registration Statement on Form S-1 (No.
            33-80507).

            Exhibit 7.  Joint Filing Agreement among Centennial Fund IV, L.P.,
            Fleet Equity Partners VI, L.P., Saugatuck Capital Company Limited
            Partnership III, PNC Capital Corp., Primus Capital Fund III limited
            partnership.

                                    Signature

            After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this Statement is true, complete and
correct.


Date: April 21, 1997                                                           
                        Jeffrey Schutz, as general partner of Centennial
                        Holdings IV, L.P., general partner of  Centennial Fund
                        IV, L.P.


Date: April 21, 1997                                                        
                        Robert Van Degna, individually and as Chairman and Chief
                        Executive Officer of Fleet Growth Resources II, Inc.,
                        general partner of  Fleet Equity Partners VI, L.P.; as
                        Chairman and Chief Executive Officer of Silverado II
                        Corp., general partner of Silverado II, L.P., general
                        partner of Chisholm Partners II, L.P.; and as Chairman
                        and Chief Executive Officer of Fleet Growth Resources,
                        Inc., Fleet Venture Resources, Inc., Fleet Private
                        Equity Co., Inc. and Silverado IV Corp.


Date: April 21, 1997                                                           
                        William C. Mutterperl, Senior Vice President, Secretary
                        and General Counsel of Fleet Financial Group, Inc. 


Date:  April 21, 1997                                                          
                        Habib Y. Gorgi, individually


Date: April 21, 1997                                                        
                        Richard P. Campbell, Jr., as general partner of Greyrock
                        Partners, general partner of Saugatuck Capital Company
                        Limited Partnership III


Date: April 21, 1997                                                        
                        Steve Rothman, Managing Director and Chief Financial
                        Officer of Primus Venture Partners, Inc., general
                        partner of Primus Venture Partners III Limited
                        Partnership, general partner of Primus Capital Fund III
                        limited partnership


Date: April 21, 1997                                                        
                        David McL. Hillman, Executive Vice President and
                        Principal of  PNC Capital Corp.     


                        ___________________________
                        Robert L. Haunschild, Chairman and President of 
                        PNC Holding Corp.


                        _________________________
                        Robert L. Haunschild, Senior Vice President and Chief
                        Financial Officer of PNC Bank Corp.
                        
                        
                                   SCHEDULE A

      Set forth below are the names and present principal occupations of each of
the executive officers and directors of FPEC, FVR, FGR, FGRII, SCII, SCIV, and
FFGI.  Except as otherwise set forth below, the principal business address of
each such person is 50 Kennedy Plaza, Providence, Rhode Island 02903.

I.    Directors and Executive Officers of FPEC, FVR, FGR, FGRII.
      
 (A) Directors                Principal Occupation

 Robert M. Van Degna          Chairman and CEO, FPEC

 Habib Y. Gorgi               President, FPEC
 H. Jay Sarles                Vice Chairman, FFGI

 Brian T. Moynihan            Vice President, FFGI

 Douglas L. Jacobs            Vice President, FFGI


 (B) Executive Officers       Principal Occupation
 Robert M. Van Degna          Chairman and CEO, FPEC

 Habib Y. Gorgi               President, FPEC

 Michael A. Gorman            Senior Vice President, FPEC

 Thadeus J. Mocarski          Senior Vice President, FPEC
 Riordon B. Smith             Senior Vice President, FPEC

 Cynthia L. Balasco           Vice President, Assistant Secretary, Controller
                              and CFO, FPEC

II.   Directors and Executive Officers of SCII and SCIV.


 (A) Directors                Principal Occupation

 Robert M. Van Degna          Chairman and CEO, FPEC
 Habib Y. Gorgi               President, FPEC


 (B) EXECUTIVE OFFICERS       PRINCIPAL OCCUPATION

 Robert M. Van Degna          Chairman and CEO, FPEC

 Habib Y. Gorgi               President, FPEC
 Michael A. Gorman            Senior Vice President, FPEC

 Thadeus J. Mocarski          Senior Vice President, FPEC

 Riordon B. Smith             Senior Vice President, FPEC
 Cynthia L. Balasco           Vice President, Assistant Secretary, Controller
                              and CFO, FPEC


III.  Directors and Executive Officers of FFGI.

 (A) Directors                Principal Occupation/Address

 Joel B. Alvord               Retired Chairman, Fleet Financial Group, Inc.
                              1 Federal Street
                              Boston, MA 02110

 William Barnet, III          President and CEO, William Barnet & Son, Inc.
                              P. O. Box 131
                              1300 Hayne Street
                              Arcadia, SC 20320
 Bradford R. Boss             Chairman, A.T. Cross Company
                              One Albion Road
                              Lincoln, RI 02865

 Stillman B. Brown            President, Harcott Corporation
                              196 Trumball Street, 4th Floor
                              Hartford, CT 06103

 Paul J. Choquette, Jr.       President, Gilbane Building Company
                              Seven Jackson Walkway
                              Providence, RI 02940

 John T. Collins              Chairman and CEO, The Collins Group, Inc.
                              Two International Place, Floor 27
                              Boston, MA 02110
 Bernard M. Fox               Chairman, President and CEO, Northeast
                              Utilities
                              P. O. Box 270
                              Hartford, CT 06141

 James F. Hardymon            Chairman and CEO, Textron, Inc.
                              40 Westminster Street
                              Providence, RI 02903

 Robert M. Kavner             Managing Director, Kavner & Associates
                              9830 Wilshire Boulevard
                              Beverly Hills, CA 90212

 Raymond C. Kennedy           Chairman, Kendell Holdings, Inc.
                              745 Warren Street
                              Hudson, NY 12534
 Robert J. Matura             Chairman and CEO, Robert J. Matura Associates
                              84 Lynam Road
                              Stamford, CT 06903

 Arthur C. Milot              Private Investor
                              P. O. Box 456
                              Jamestown, RI 02835

 Terrence Murray              Chairman, President and CEO, Fleet Financial
                              Group, Inc.
                              1 Federal Street
                              Boston, MA 02110

 Thomas D. O Connor, Sr.      Chairman and CEO, Mohawk Paper Mills, Inc.
                              465 Saratoga Street
                              P. O. Box 497
                              Cohoes, NY 12047
 Michael B. Picotte           Managing General Partner and CEO, The Picotte
                              Companies
                              20 Corporate Woods Boulevard, Suite 600
                              Albany, NY 12211
(A) Directors                Principal Occupation/Address

 Lois D. Rice                 Guest Scholar, Program in Economic Studies
                              Brookings Institution
                              2332 Massachusetts Avenue, N.W.
                              Washington, DC 20008

 John R. Riedman              Chairman, Riedman Corp.
                              Riedman Tower
                              45 East Avenue
                              Rochester, NY 14604
 John S. Scott                Retired Chairman, Richardson-Vicks, Inc.
                              1191 Smith Ridge Road
                              New Canaan, CT 06840

 Samuel O. Thier              CEO, Partners Healthcare System, Inc.
                              Prudential Tower - 11th Floor
                              800 Boylston Street
                              Boston, MA 02199

 Paul R. Tregurtha            Chairman and CEO, Mormac Marine Group, Inc.
                              Three Landmark Square
                              Stamford, CT 06901

 (B) Executive Officers       Principal Occupation/Business Address
 Robert J. Higgins            Vice Chairman
                              Fleet Financial Group, Inc.

 Douglas L. Jacobs            Treasurer
                              Fleet Financial Group, Inc.
                              75 State Street
                              Boston, MA

 Robert C. Lamb, Jr.          Controller and Chief Accounting Officer
                              Fleet Financial Group, Inc.

 Eugene M. McQuade            Executive Vice President and CFO
                              Fleet Financial Group, Inc.
                              1 Federal Street
                              Boston, MA 02110
 Terrence Murray              Chairman, President and CEO
                              Fleet Financial Group, Inc.
                              1 Federal Street
                              Boston, MA 02110

 William C. Mutterperl        Senior Vice President, Secretary and General
                              Counsel  
                              Fleet Financial Group, Inc.
                              1 Federal Street
                              Boston, MA 02110

 Gunnar S. Overstrom, Jr.     Vice Chairman
                              Fleet Financial Group, Inc.
                              777 Main Street
                              Hartford, CT 06115

 H. Jay Sarles                Vice Chairman
                              Fleet Financial Group, Inc.
                              1 Federal Street
                              Boston, MA 02100
 Michael R. Zucchini          Vice Chairman
                              Fleet Financial Group, Inc.
                                   
                                   SCHEDULE B

      Set forth below are the names and present principal occupations of each of
the executive officers and directors of PHC Holding Corp.,  PNC Capital Corp.,
and PNC Bank Corp. All of the persons listed below are United States citizens.

I.    DIRECTORS AND EXECUTIVE OFFICERS OF PNC HOLDING CORP.:
 (A) Directors                          Principal Occupation/Address

 Robert L. Haunschild                   Senior Vice President,
                                        Chief Executive Officer
                                        PNC Bank Corp.
                                        One PNC Plaza
                                        249 Fifth Avenue
                                        Pittsburgh, PA 15222-2707

 Michelle L. Petrilli                   Chief Market Counsel
                                        PNC Bank, Delaware
                                        222 Delaware Avenue, 18th Floor
                                        Wilmington, DE 19801
 Henry A. Vogt                          Senior Vice President,
                                        Chief Credit Policy Officer
                                        PNC Bank, Delaware
                                        222 Delaware Avenue
                                        Wilmington, DE 19899

 (B)  OFFICERS                          PRINCIPAL OCCUPATION/ADDRESS

 John S. Fioravanti                     Treasurer
                                        PNC Funding Corp.
                                        Broad & Chestnut Streets
                                        19th Floor
                                        Philadelphia, PA 19110

 Maria C. Schaffer                      Controller
                                        PNC Capital Corp.
                                        One PNC Plaza, 19th Floor
                                        Pittsburgh, PA 15265

 Robert L. Haunschild                   Chairman and President
                                        PNC Equity Management Corp.
                                        One PNC Plaza
                                        249 Fifth Avenue
                                        Pittsburgh, PA 15222-2707

 Michelle L. Petrilli                   Secretary
                                        Chief Market Counsel
                                        PNC Bank, Delaware
                                        222 Delaware Avenue, 18th Floor
                                        Wilmington, DE 19801


II.   DIRECTORS AND EXECUTIVE OFFICERS OF PNC CAPITAL CORP.:
 (A) Directors                          Principal Occupation/Address

 Robert L. Haunschild                   Executive Vice President
                                        PNC Equity Management Corp.
                                        One PNC Plaza
                                        249 Fifth Avenue
                                        Pittsburgh, PA 15222-2707

 David McL. Hillman                     Executive Vice President
                                        PNC Equity Management Corp.
                                        One PNC Plaza
                                        249 Fifth Avenue
                                        Pittsburgh, PA 15222-2707
 Donald H. Jones                        Chairman
                                        Industry.net
                                        639 Alpha Drive
                                        Pittsburgh, PA 15238

 Robert C. Milsom                       Retired
                                        PNC Bank, N.A.
                                        One PNC Plaza, Suite 2310
                                        Fifth Avenue and Wood Street
                                        Pittsburgh, PA 15265

 Michelle L. Petrilli                   Chief Market Counsel
                                        PNC Bank, Delaware
                                        222 Delaware Avenue, 18th Floor
                                        Wilmington, DE 19801

 Konrad M. Weis                         Retired
                                        Bayer Corporation
                                        500 Grant Street
                                        One Mellon Center
                                        Pittsburgh, PA 15219-2502

 Gary J. Zentner                        President
                                        PNC Equity Management Corp.
                                        One PNC Plaza, 19th Floor
                                        249 Fifth Avenue
                                        Pittsburgh, PA 15222-2707

 (B)  OFFICERS



 John S. Fioranvanti                    Treasurer
                                        PNC Funding Corp.
                                        Broad & Chestnut Streets
                                        19th Floor
                                        Philadelphia, PA 19110
 Maria C. Schaffer                      Controller
                                        PNC Capital Corp.
                                        19th Floor
                                        Pittsburgh, PA 15265

 Michelle L. Petrilli                   Secretary
                                        Chief Market Counsel
                                        PNC Bank, Delaware
                                        222 Delaware Avenue, 18th Floor
                                        Wilmington, DE 19801

 Gary J. Zentner                        President
                                        PNC Equity Management Corp.
                                        One PNC Plaza, 19th Floor
                                        249 Fifth Avenue

III.  DIRECTORS AND EXECUTIVE OFFICERS OF PNC BANK CORP.: 
(A) Directors                          Principal Occupation/Address

 Paul W. Chellgren                      Chairman and Chief Executive Officer
                                        Ashland Inc.
                                        P. O. Box 391
                                        Ashland, KY 41114

 Robert N. Clay                         President and Chief Executive Officer
                                        Clay Holding Company
                                        Three Chimneys Farm
                                        Versailles, KY 40383

 George A. Davidson, Jr.                Chairman and Chief Executive Officer
                                        Consolidated Natural Gas Company
                                        CNG Tower, 625 Liberty Avenue
                                        Pittsburgh, PA 15222-3199

 David F. Girard-diCarlo                Managing Partner
                                        Blank Rome Comisky & McCauley
                                        Four Penn Center Plaza
                                        Philadelphia, PA 19103

 Dianna L. Green                        Senior Vice President, Customer
                                        Operations
                                        Duquesne Light Company
                                        411 7th Avenue - 16th Floor
                                        Pittsburgh, PA 15219

 Carl G. Grefenstette                   Chairman and Chief Executive Officer
                                        The Hillman Company
                                        2000 Grant Building
                                        Pittsburgh, PA 15219
 Arthur J. Kania                        Principal
                                        Trikan Associates
                                        Two Bala Cynwyd Plaza, Suite 525
                                        Bala Cynwyd, PA 19004

 Bruce C. Lindsay                       Chairman and Managing Director
                                        Brind-Lindsay & Co., Inc.
                                        1520 Locust Street, Suite 1100
                                        Philadelphia, PA 19102

 Thomas Marshall                        Thomas Marshall Foundation
                                        600 Grant Street, Suite 1080
                                        Pittsburgh, PA 15219-2704

 W. Craig McClelland                    Chairman and Chief Executive Officer
                                        Union Camp Corporation
                                        1600 Valley Road
                                        Wayne, NJ 07470
 Donald I. Moritz                       Chairman of the Executive Committee
                                        Equitable Resources, Inc.
                                        420 Boulevard of the Allies
                                        Pittsburgh, PA 15219


 Thomas H. O Brien                      Chairman and Chief Executive Officer
                                        PNC Bank Corp.
                                        One PNC Plaza, 249 Fifth Avenue
                                        Pittsburgh, PA 15222-2707

 Jackson H. Randolph                    Chairman
                                        Cinergy Corp.
                                        221 East Fourth Street, Suite 3004
                                        Cincinnati, OH 45202
James E. Rohr                          President 
                                        PNC Bank, N.A.
                                        One PNC Plaza, 30th Floor
                                        Pittsburgh, PA 15265

 Roderic H. Rose                        Chairman and Chief Executive Officer
                                        Keystone State Life Insurance Co.
                                        1401 Walnut Street, 10th Floor
                                        Philadelphia, PA 19102-3122

 Vincent A. Sarni                       Retired Chairman and Chief Executive
                                        officer
                                        PPG Industries, Inc.
                                        One PPG Place
                                        Pittsburgh, PA 15272
 Garry J. Scheuring                     Retired Vice Chairman
                                        PNC Bank Corp.
                                        Two Tower Center
                                        East Brunswick, NJ 08816-1100

 Richard P. Simmons                     Chairman, President and
                                        Chief Executive Officer
                                        Allegheny Teledyne Incorporated
                                        1000 Six PPG Place
                                        Pittsburgh, PA 15222-5479

 Thomas J. Usher                        Chairman and Chief Executive Officer
                                        USX Corporation
                                        600 Grant Street, Room 6170
                                        Pittsburgh, PA 15219-4776

 Milton A. Washington                   President and Chief Executive Officer
                                        AHRCO
                                        5604 Baum Boulevard
                                        Pittsburgh, PA 15206
 Helge H. Wehmeier                      President and Chief Executive Officer
                                        Bayer Corporation
                                        500 Grant Street, Suite 5300
                                        Pittsburgh, PA 15219-2507

 (B) OFFICERS

 Robert L. Haunschild                   Senior Vice President
                                        Chief Financial Officer
                                        PNC Bank Corp.
                                        One PNC Plaza
                                        249 Fifth Avenue
                                        Pittsburgh, PA 15222-2707

 William F. Strome                      Senior Vice President and
                                        Corporate Secretary
                                        One PNC Plaza
                                        249 Fifth Avenue
                                        Pittsburgh, PA 15222-2707
 James E. Rohr                          President 
                                        PNC Bank, N.A.
                                        One PNC Plaza, 30th Floor
                                        Pittsburgh, PA 15265

 Thomas H. O Brien                      Chairman and CEO
                                        PNC Bank, N.A.
                                        One PNC Plaza, 30th Floor
                                        Pittsburgh, PA 15265<PAGE>


                                    Exhibit 2

                   DIRECTOR'S RESTRICTED STOCK AWARD AGREEMENT

                                         1996 AWARD

      This is an Agreement dated April 15, 1996 between Preferred Networks,
Inc. ("PNI"), a Delaware corporation, and Jeffrey H. Schutz
(the "Outside Director").

                                   Background

      The PNI 1995 Non-Employee Directors  Restricted Stock Award Plan (the
"Plan") provides for the grant of shares of PNI Common Stock ("Common Stock"),
subject to certain restrictions, as compensation for service as a director to
each director of PNI who is not an officer or employee of PNI.   Pursuant to
such Plan, the Outside Director is entitled to this Award with respect to his
services as a director of PNI.

                                    Agreement

      The parties hereto do hereby agree as follows:

      1.   Award.  Pursuant to the Plan, the Outside Director is awarded 15,000
shares of Common Stock (the "Shares") as compensation for the Outside Director s
services as a director of PNI, subject to the terms of the Plan and this
Agreement.

      2.    Restrictions.  The Shares are subject to the restrictions prescribed
in the Plan and some or all of the Shares must be transferred back to PNI for no
consideration under certain circumstances as set forth in the Plan if the
Outside Director ceases to be a director of PNI for any reason at any time prior
to the 2001 Annual Meeting of PNI's Shareholders.

      3.    Certificates.  The certificate or certificates representing the
Shares shall be legended to reflect the applicable restrictions and shall be
held by the Secretary of PNI as long as such restrictions have not expired.

      4.    No 83(b) Election.  The Outside Director shall not file an election
under Section 83(b) of the Internal Revenue Code of 1986 with respect to this
Award.

      5.   No Transfer.  The Outside Director shall not transfer the Shares or
any interest therein prior to the lapse of restrictions on the Shares pursuant
to the Plan.

      6.    Award Subject to Plan.   This Award and the Shares are subject to
all of the other terms and conditions of the Plan.

      Executed the day and year first above written.

                                    PREFERRED NETWORKS,  INC. 

                                    By:____________________________________
                                          Mark H. Dunaway, Chairman
                                          and Chief Executive Officer


                                    OUTSIDE DIRECTOR

                                    _______________________________________
                                    (Signature of Outside Director)



                      AMENDMENT NO. 1 TO PURCHASE AGREEMENT

      THIS AMENDMENT NO. 1 TO PURCHASE AGREEMENT (this "Amendment") dated as of
December 12, 1995, is by and among PREFERRED NETWORKS, INC., a Delaware
corporation (the "Company") and each of the Persons listed as a Purchaser on the
signature pages to this Amendment (referred to herein collectively as the
"Purchasers" and individually as a "Purchaser").

                                    RECITALS:

      WHEREAS, the Company and the Purchasers have entered into a Purchase
Agreement dated as of June 21, 1995 (the "Purchase Agreement") with respect to
the acquisitions by the Purchasers of shares of Series B Convertible Preferred
Stock of the Corporation;

      WHEREAS, the Company and the Purchasers desire to amend the Purchase
Agreement in certain respects as provided herein.

                             STATEMENT OF AMENDMENT:

      NOW, THEREFORE, in consideration of the premises, the mutual covenants and
agreements of the parties herein and in the Purchase Agreement, and other good
and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:

      1.    Defined Terms.  Capitalized terms not defined in this Agreement are
used as defined in the Purchase Agreement.

      2.    Deletion of Certain Provisions.  The following provisions of the
Purchase Agreement, and references thereto, shall be deleted from the Purchase
Agreement upon completion of the "Qualified Senior Public Offering" currently
contemplated by the Company, as such term is defined in the Company's
Certificate of Incorporation as the same may hereafter be amended (the
"Certificate of Incorporation"), and all references to a "Qualified Public
Offering" as defined in the Purchase Agreement shall be deemed to be references
to a "Qualified Senior Public Offering" as defined in the Certificate of
Incorporation:

            (a)   Section 3A (delivery of financial information), except to the
extent necessary for each SBIC Holder to comply with applicable law;

            (b)   Section 3C (attendance at board meetings);

            (c)   Section 3D (restrictions);

            (d)   Section 3E (affirmative covenants);

            (e)   Section 3F (underlying common stock and warrant covenants);
and

            (f)   Section 3K (public disclosure).

      3.    Public Disclosures.  Notwithstanding the provisions of Section 3K of
the Purchase Agreement, the Purchasers may be listed as stockholders in any
registration statements or report filed with the Securities and Exchange
Commission or any state securities commission and the transactions with the
Purchasers contemplated by the Purchase Agreement may be described therein
without prior review or approval by the Purchasers.

      4.    FCC Matters.  The Company hereby represents that on December 11,
1995, it filed an application with the FCC to obtain FCC Approval as
contemplated by Section 3M(i) of the Purchase Agreement.  Section 3M(i) of the
Purchase Agreement (requiring FCC approval by September 30, 1995) is hereby
deleted from the Purchase Agreement, and the Purchasers hereby waive any rights
they have arising out of the failure of the Company to have complied previously
with Section 3M(i) on a timely basis.

      5.    General.  Except as hereby amended, all the terms and provisions of
the Purchase Agreement shall continue in full force and effect.

      6.    Counterparts.  This Amendment may be executed by each party upon a
separate copy, and in such case one counterpart of this Amendment shall consist
of enough of such copies to reflect the signatures of all of the parties. This
Amendment may be executed in two or more counterparts, each of which shall be an
original, and each of which shall constitute one and the same amendment.  Any
party may deliver an executed copy of this Amendment by facsimile transmission
to the other parties and such delivery shall have the same force and effect as
delivery of a manually signed copy of this Amendment.

      IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date first set forth above.



                       Exhibit 7 -- Joint Filing Agreement

            In accordance with Rule 13d-1(f) under the Securities Exchange Act
of 1934, as amended, the undersigned hereby (I) agree to the joint filing with
all other Reporting Persons (as such term is defined the statement on Schedule
13D described below) on behalf of each of them of a statement on Schedule 13D
(including amendments thereto) with respect to the Common Stock, par value
$.0001 per share, of  Preferred Networks, Inc. and (ii) agree that this
Agreement be included as an Exhibit to such joint filing.  This Agreement may be
executed in any number of counterparts all of which taken together shall
constitute one and the same instrument.  In witness whereof, the undersigned
hereby execute this Agreement as of the 21st day of April, 1997.


Date: April 21, 1997                                                           
                        Jeffrey Schutz, as general partner of Centennial
                        Holdings IV, L.P., general partner of  Centennial Fund
                        IV, L.P.


Date: April 21, 1997                                                        
                        Robert Van Degna, individually and as Chairman and Chief
                        Executive Officer of Fleet Growth Resources II, Inc.,
                        general partner of  Fleet Equity Partners VI, L.P.; as
                        Chairman and Chief Executive Officer of Silverado II
                        Corp., general partner of Silverado II, L.P., general
                        partner of Chisholm Partners II, L.P.; and as Chairman
                        and Chief Executive Officer of Fleet Growth Resources,
                        Inc., Fleet Venture Resources, Inc., Fleet Private
                        Equity Co., Inc. and Silverado IV Corp.


Date: April 21, 1997                                                           
                        William C. Mutterperl, Senior Vice President, Secretary
                        and General Counsel of Fleet Financial Group, Inc. 


Date:  April 21, 1997                                                          
                        Habib Y. Gorgi, individually


 Date: April 21, 1997                                                       
                        Richard P. Campbell, Jr., as general partner of Greyrock
                        Partners, general partner of Saugatuck Capital Company
                        Limited Partnership III




Date: April 21, 1997                                                        
                        Steve Rothman, Managing Director and Chief Financial
                        Officer of Primus Venture Partners, Inc., general
                        partner of Primus Venture Partners III Limited
                        Partnership, general partner of Primus Capital Fund III
                        limited partnership


Date: April 21, 1997                                                        
                        David McL. Hillman, Executive Vice President and
                        Principal of  PNC Capital Corp.     


Date:   April 21, 1997
                        Robert L. Haunschild, Chairman and President of 
                        PNC Holding Corp.
                        
Date:  April 21, 1997
                        Robert L. Haunschild, Senior Vice President and Chief
                        Financial Officer of PNC Bank Corp.




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